any body tell me ,contol valve has how many cheractristic? explain it.

6 Answers   L&T,

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Why Flow measure in Square-root?

12 Answers  

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In Boiler Drum Level- Level control valve how can it tuning (PID)?

2 Answers  

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what are the possible reasons if a control valve fails to open/close?

1 Answers   DEWA,

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What is output of Thermocouple at 25 deg c

10 Answers   TATA,

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What does threshold mean? what does tolerance mean?

1 Answers   DEWA,

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How to calibrate vertex flow meter? How to calibrate mass flow meter?

1 Answers   Chevron,

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LADDER LOGIC Can any body state Logic on following condition Instructions to use 1-XIC 2-XIO 3-Output ONLY Program Push 1st button On - 1st lamp should On Then Push 1st button Off - 1st Lamp Should remain on Push 2nd button On - 1st lamp should Off and 2nd lamp should On Then Push 2nd button Off - 2nd Lamp Should remain on.

4 Answers  

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what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

0 Answers  

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What are different types of valves?

0 Answers  

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can any one help me to get bel probational engineers sample question papers. I have applied for it.

0 Answers  

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give me the formula for analog to digital converter and also d to a converter

0 Answers   ACC,

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